Patent document display case



FIG. 1 is a perspective illustration view of the patent document display case;

FIG. 2 is a side elevational view thereof, with the opposite side being a mirror image;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a back view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design. 

The ornamental design for patent document display case, as shown and described. 